Might I suggest train TR6595 leaving Cambridge at 19:00 and arriving at London Kings Cross at 19:51. Would that work for you?
Yes, that does work. Could you book it for 1 person please?
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train-arriveby train-day train-departure train-destination train-people
train-arriveby train-day train-departure train-destination train-people
train-arriveby train-day train-departure train-destination train-people